A method applied to the restoration of large deep-water lake ecosystems

Abstract

The invention discloses a large deep lake water ecosystem restoration method. The large deep lake water ecosystem restoration method adopts basic condition improvement, a lake reservoir fencing net separation and partition technology, a transitional zone wash-preventing technology system, an inflow water front-arranged reservoir pre-treatment system, an ecological plant floating island construction, planting of submerged plants and floating-leaf vegetations in a planting area, spreading and planting of submerged vegetations in a deep-water area, a food network chain establishment, repair and management technology system, a sediment-water interface nutrient salt control system, a microbial membrane strengthening system, a species diversity habitat system and a lake water ecosystem protection technology. By the adoption of the large deep lake water ecosystem restoration method, the water body pollution load is effectively reduced, the water self-purification ability is improved, and a water body can be clear and be free of color and smell and accordingly is suitable for human to use.

Description

technical field [0001] The invention belongs to the technical field of water environment pollution control, and in particular relates to the restoration of an existing lake water ecosystem. Background technique [0002] With the development of industry, the continuous improvement of people's living standards, and the continuous deterioration of the global environment, the control of water pollution and the improvement of the ecological environment have entered a relative bottleneck period; the water cycle system is fragile, the quality of the water environment is declining, and the water function is degraded. Research on urban sewage collection and treatment, surface runoff pollution control, urban water function restoration, and water body ecological landscape construction. A series of advanced water pollution control, ecosystem construction and restoration, and waterscape optimization technologies have been developed for urban rivers, water supply reservoirs, natural lakes...

AI Technical Summary

Problems solved by technology

[0004] At present, most of the existing large deep-water lakes are used as backup water sources for drinking water, but once the aquaculture industry was also taken into account, the water quality deteriorated seriously. Now the national policy explicitly prohibits seine aquaculture in large lakes and reservoirs, but in the treatment technology of large lakes and reservoirs, there is still Only the biological floating bed technology can suppress the deterioration of the eutrophication level of the lake, but because the required floating bed area is too large, the cost is extremely high, and maintenance is difficult, it cannot fundamentally change the development trend of the eutrophication level

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